html {
  color: #222;
  overflow-y: scroll;
  font-family: "微软雅黑", Arial;
  font-size: 16px;
  line-height: 1.75rem;
}

body,div,p,h1,h2,h3,h4,h5,h6,ul,ol,li,dl,dt,dd,table,td,tr,th,header,article,footer,section,nav,pre {
  margin: 0;
  padding: 0;
}

h1,h2,h3,h4,h5,h6 {
  font-size: 1rem;
  font-weight: 400;
}

ul,ol {
  list-style: none;
  padding-inline-start: 0;;
}

li {
  list-style-type: none;
}

table,td,tr,th {
  font-size: 1rem;
}

img {
  vertical-align: middle;
  border: none;
}

a {
  color: #222;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* 公共类 */

.fl {
  float: left;
}

.fr {
  float: right;
}

.al {
  text-align: left;
}

.ac {
  text-align: center;
}

.ar {
  text-align: right;
}

.hide {
  display: none;
}

.blod {
  font-weight: 700;
}

.italic {
  font-style: italic;
}

.underline {
  text-decoration: underline;
}

.middleline {
  text-decoration: line-through;
}

.smallText {
  font-size: 0.75rem;
}

.bigText {
  font-size: 1.25rem;
}

.clearfix {
  zoom: 1;
}

.clearfix::after {
  content: "";
  display: block;
  height: 0;
  overflow: hidden;
  clear: both;
}
